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February 19, 2026
·
Prague
Elder Czech STT Performance
Discover which of five common STT providers performs best on elderly Czech voices, with surprising findings on volume leveling impacting accuracy.
Overview
Results of analysis of 5 common realtime STT providers (Cartesia, Deepgram, Eleven Labs, Google, Speechmatics) on cca. 1 hour of 20 different elderly czech voices (Paměť národa). It is more results, the code itself is fairly trivial…
Tech stack